angular 9 conditional class code example

Example 1: Angular 8 ngClass If

[ngClass]="(step=='step1')?'my-class1':'my-class2'"

Example 2: conditional classes angular

<div 
  [className]="isActive ? 'active' : 'inactive'">
</div>

Example 3: Angular 8 ngClass If

[class.my-class]="step=='step1'"